4,40-Thiobis(6-tert-butyl-m-cresol) is a light gray to tan powder. Aromatic odor.
white to almost white crystals or crystalline
Protection of light-colored rubber from oxidation
and of nonstaining neoprene compounds
against deterioration.
4,4''-Thiobis(2-tert-butyl-5-methylphenol) is an antioxidant. 4,4''-Thiobis(2-tert-butyl-5-methylphenol) is a radical inhibitor which prevented thermal decomposition of the peracid.
As an antioxidant in the rubber and
plastics industry; as a stabilizer in polyethylene
and polyolefin packaging materials for foodstuffs.
White or light gray to tan powder.
Sensitive to base hydrolysis and may spontaneously oxidize in solution. . Insoluble in water.
4,4'-Thiobis(6-tert-butyl-m-cresol) may be sensitive to light.
Toxic by inhalation. Upper respiratory tract
irritant. Questionable carcinogen.
4,4'-Thiobis(6-tert-butyl-mcresol)
(TBBC) is of low systemic toxicity in
animals; allergic contact dermatitis has been
reported in humans.
4,4'-Thiobis(6-tert-butyl-m-cresol) is combustible.
Flammability and Explosibility
Non flammable
Poison by
intraperitoneal route and probably by
ingestion and inhalation. Mutation data
reported. See also SULFIDES. When heated
to decomposition it emits highly toxic fumes
of SOx.
This material is used as an antioxidant in the plastics and rubber industries; in Neoprene and other synthetic rubbers; in polyethylene and polypropylene.
TBBC was not mutagenic in Salmonella
typhimurium strains with or without metabolic
activation. In Chinese hamster ovary cells,
TBBC induced an increase in sister chromatid
exchanges but there were no increases in chromosomal
aberrations.
Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. May evolve explosive hydrogen sulfide upon contact with moisture or acids.
